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Subject[PATCH 01/11] devicetree: bindings: Document cpu enable-method for ARM CPUs
From: Rohit Vaswani <>

According to the ePAPR CPUs should have an enable method. On ARM
the enable-method property has not been used so far, so document
this property as an optional property and add the spin-table
method as one value

Cc: <>
Signed-off-by: Rohit Vaswani <>
[sboyd: Split off into separate patch]
Signed-off-by: Stephen Boyd <>
Documentation/devicetree/bindings/arm/cpus.txt | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index f32494d..37258f9 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -45,6 +45,14 @@ For the ARM architecture every CPU node must contain the following properties:

+And the following optional properties:
+- enable-method: Specifies the method used to enable or take the secondary cores
+ out of reset. This allows different reset sequence for
+ different types of cpus.
+ This should be one of:
+ "spin-table"

cpus {
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